| Abutilon theophrastii |
BUTTONWEED |
| Acalypha gracilens |
SLENDER THREE-SEEDED MERCURY |
| Acalypha ostryaefolia |
THREE-SEEDED MERCURY |
| Acalypha rhomboidea |
THREE-SEEDED MERCURY |
| Acalypha virginica |
THREE-SEEDED MERCURY |
| Acer negundo |
ASH-LEAVED MAPLE |
| Acer saccharinum |
RIVER MAPLE |
| Achillea millefolium |
COMMON MILFOIL |
| Acorus americanus |
FLAG ROOT |
| Actaea pachypoda |
DOLL'S-EYES |
| Adiantum pedatum |
MAIDENHAIR FERN |
| Aesculus glabra |
OHIO BUCKEYE |
| Agalinis aspera |
ROUGH FALSE FOXGLOVE |
| Agalinis purpurea |
FALSE FOXGLOVE |
| Agalinis skinneriana |
PALE FALSE FOXGLOVE |
| Agalinis tenuifolia |
SLENDER FALSE FOXGLOVE |
| Agastache nepetoides |
YELLOW GIANT HYSSOP |
| Agastache scrophulariaefolia |
PURPLE GIANT HYSSOP |
| Agrimonia gryposepala |
TALL AGRIMONY |
| Agrimonia rostellata |
WOODLAND AGRIMONY |
| Agropyron repens |
COUCH GRASS |
| Agropyron smithii |
COLORADO BLUESTEM |
| Agrostemma githago |
CORN COCKLE |
| Agrostis alba |
RED TOP |
| Agrostis hyemalis |
HAIR GRASS |
| Ailanthus altissima |
TREE-OF-HEAVEN |
| Alisma plantago aquatica parviflorum |
COMMON WATER PLANTAIN |
| Allium canadense |
WILD GARLIC |
| Allium tricoccum |
RAMP |
| Allium vineale |
FIELD GARLIC |
| Alopecurus carolinianus |
ANNUAL FOXTAIL |
| Amaranthus albus |
TUMBLEWEED |
| Amaranthus arenicola |
TORREY'S AMARANTH |
| Amaranthus graecizans |
PROSTRATE AMARANTH |
| Amaranthus hybridus |
GREEN AMARANTH |
| Amaranthus retroflexus |
ROUGH PIGWEED |
| Amaranthus spinosus |
SPINY PIGWEED |
| Amaranthus tuberculatus |
TALL WATERHEMP |
| Ambrosia artemisiifolia |
BITTERWEED |
| Ambrosia psilostachya |
WESTERN RAGWEED |
| Ambrosia trifida |
BUFFALO WEED |
| Ammannia coccinea |
LONG-LEAVED AMMANNIA |
| Amorpha canescens |
LEAD PLANT |
| Amorpha fruticosa |
FALSE INDIGO BUSH |
| Ampelopsis cordata |
RACCOON GRAPE |
| Amphicarpa bracteata comosa |
HOG PEANUT |
| Amsonia tabernaemontana |
BLUE STAR |
| Andropogon gerardii |
BIG BLUESTEM |
| Andropogon virginicus |
BROOM SEDGE |
| Anemone canadensis |
MEADOW ANEMONE |
| Anemone caroliniana |
CAROLINA ANEMONE |
| Anemone cylindrica |
CANDLE ANEMONE |
| Anemone virginiana |
TALL ANEMONE |
| Antennaria neglecta |
CAT'S FOOT |
| Antennaria plantaginifolia |
EVERLASTING |
| Anthemis cotula |
DOG FENNEL |
| Apios americana |
GROUNDNUT |
| Apocynum androsaemifolium |
SPREADING DOGBANE |
| Apocynum cannabinum |
DOGBANE |
| Apocynum sibiricum |
INDIAN HEMP |
| Aquilegia canadensis |
COLUMBINE |
| Arctium minus |
COMMON BURDOCK |
| Arctium tomentosum |
COTTON BURDOCK |
| Argemone albiflora |
WHITE PRICKLY POPPY |
| Arisaema dracontium |
GREEN DRAGON |
| Arisaema triphyllum |
INDIAN TURNIP |
| Aristida desmantha |
THREE AWN |
| Aristida dichotoma |
POVERTY GRASS |
| Aristida longespica |
THREE AWN |
| Aristida oligantha |
PLAINS THREE AWN GRASS |
| Aristida purpurascens |
ARROWFEATHER |
| Arrhenatherum elatius |
TALL OAT GRASS |
| Artemisia campestris |
BEACH WORMWOOD |
| Artemisia dracunculus |
FALSE TARRAGON |
| Artemisia ludoviciana |
LOUISIANA SAGEBRUSH |
| Artemisia ludoviciana gnaphalodes |
|
| Artemisia pontica |
ROMAN WORMWOOD |
| Aruncus dioicus |
GOAT'S-BEARD |
| Asarum canadense reflexum |
CANADA WILD GINGER |
| Asclepias amplexicaulis |
SAND MILKWEED |
| Asclepias hirtella |
TALL GREEN MILKWEED |
| Asclepias incarnata |
SWAMP MILKWEED |
| Asclepias purpurascens |
PURPLE MILKWEED |
| Asclepias quadrifolia |
WHORLED MILKWEED |
| Asclepias sullivantii |
PRAIRIE MILKWEED |
| Asclepias syriaca |
COMMON MILKWEED |
| Asclepias tuberosa interior |
BUTTERFLYWEED |
| Asclepias verticillata |
HORSETAIL MILKWEED |
| Asimina triloba |
BANANA TREE |
| Asparagus officinalis |
GARDEN ASPARAGUS |
| Asplenium platyneuron |
EBONY SPLEENWORT |
| Aster azureus |
AZURE ASTER |
| Aster drummondii |
DRUMMOND'S ASTER |
| Aster ericoides prostratus |
HEATH ASTER |
| Aster linariifolius |
FLAX-LEAVED ASTER |
| Aster novae-angliae |
NEW ENGLAND ASTER |
| Aster parviceps |
ASTER |
| Aster pilosus |
HAIRY ASTER |
| Aster praealtus |
WILLOW-LEAVED ASTER |
| Aster sericeus |
SILKY ASTER |
| Aster vimineus |
FROST FLOWER |
| Atriplex patula |
FAT-HEN SALTBUSH |
| Aureolaria grandiflora pulchra |
YELLOW FALSE FOXGLOVE |
| Azolla mexicana |
MEXICAN AZOLLA |
| Baptisia lactea |
WHITE WILD INDIGO |
| Barbarea vulgaris arcuata |
WINTER CRESS |
| Belamcanda chinensis |
BLACKBERRY LILLY |
| Berberis thunbergii |
JAPANESE BARBERRY |
| Betula nigra |
RED BIRCH |
| Bidens aristosa |
SWAMP MARIGOLD |
| Bidens aristosa retrorsa |
|
| Bidens bipinnata |
SPANISH NEEDLES |
| Bidens cernua |
NODDING BEGGAR-TICKS |
| Bidens tripartita |
BEGGARTICK |
| Bidens vulgata |
STICKTIGHT |
| Blephilia ciliata |
PAGODA PLANT |
| Blephilia hirsuta |
PAGODA PLANT |
| Boehmeria cylindrica |
FALSE NETTLE |
| Boltonia asteroides |
FALSE ASTER |
| Boltonia decurrens |
FALSE ASTER |
| Botrychium dissectum |
BRONZE FERN |
| Botrychium dissectum obliquum |
BRONZE FERN |
| Botrychium virginianum |
RATTLESNAKE FERN |
| Bouteloua curtipendula |
MESQUITE GRASS |
| Bouteloua gracilis |
BLUE GRAMMA |
| Bouteloua hirsuta |
BLACK GRAMMA |
| Brachyelytrum erectum |
LONG-AWNED WOOD GRASS |
| Brassica juncea |
CHINESE MUSTARD |
| Brassica kaber pinnatifida |
CHARLOCK |
| Brassica nigra |
BLACK MUSTARD |
| Brickellia eupatorioides |
FALSE BONESET |
| Bromus commutatus |
HAIRY BROME |
| Bromus inermis |
AWNLESS BROME GRASS |
| Bromus japonicus |
JAPANESE BROME |
| Bromus pubescens |
CANADA BROME GRASS |
| Bromus secalinus |
CHEAT |
| Bromus tectorum |
CHEAT GRASS BROME |
| Buchnera americana |
BLUE HEARTS |
| Buglossoides arvense |
CORN GROMWELL |
| Bulbostylis capillaris |
HAIR SEDGE |
| Cacalia atriplicifolia |
PALE INDIAN PLANTAIN |
| Callirhoe triangulata |
POPPY MALLOW |
| Calystegia sepium americana |
AMERICAN BINDWEED |
| Camassia scilloides |
WILD HYACINTH |
| Camelina microcarpa |
FALSE FLAX |
| Campanula americana |
AMERICAN BELLFLOWER |
| Campanula rapunculoides |
EUROPEAN BELLFLOWER |
| Campsis radicans |
TRUMPET CREEPER |
| Cannabis sativa |
HASHISH |
| Capsella bursa-pastoris |
SHEPERD'S-PURSE |
| Cardaria draba |
HOARY CRESS |
| Carex artitecta |
SEDGE |
| Carex blanda |
WOODLAND SEDGE |
| Carex brevior |
FESCUE SEDGE |
| Carex bushii |
SEDGE |
| Carex cephalophora |
|
| Carex conjuncta |
|
| Carex conoidea |
SEDGE |
| Carex cristatella |
SEDGE |
| Carex crus-corvi |
SEDGE |
| Carex davisii |
DAVIS SEDGE |
| Carex frankii |
SEDGE |
| Carex gravida |
HEAVY SEDGE |
| Carex grisea |
SEDGE |
| Carex hirsutella |
SEDGE |
| Carex hirtifolia |
HAIRY SEDGE |
| Carex hystricina |
BOTTLEBRUSH SEDGE |
| Carex lupuliformis |
SEDGE |
| Carex lupulina |
HOP SEDGE |
| Carex lurida |
SEDGE |
| Carex meadii |
MEAD SEDGE |
| Carex muhlenbergii |
|
| Carex oligocarpa |
SEDGE |
| Carex pensylvanica |
PENNSYLVANIA SEDGE |
| Carex rosea |
|
| Carex shortiana |
SEDGE |
| Carex stipata |
PRICKLY SEDGE |
| Carex tribuloides |
SEDGE |
| Carex vulpinoidea |
FOX SEDGE |
| Carya cordiformis |
BITTERNUT HICKORY |
| Carya glabra |
PIGNUT HICKORY |
| Carya illinoensis |
PECAN |
| Carya laciniosa |
BIG SHELLBARK |
| Carya ovata |
SCALY-BARK HICKORY |
| Carya tomentosa |
MOCKERNUT HICKORY |
| Cassia fasciculata |
GOLDEN CASSIA |
| Cassia marilandica |
MARYLAND SENNA |
| Catalpa bignonioides |
COMMON CATALPA |
| Caulophyllum thalictroides |
BLUE COHOSH |
| Ceanothus americanus |
NEW JERSEY TEA |
| Celastrus scandens |
BITTERSWEET |
| Celtis occidentalis |
HACKBERRY |
| Celtis occidentalis canina |
HACKBERRY |
| Cenchrus longispinus |
MAT SANDBUR |
| Centaurea diffusa |
DIFFUSE KNAPWEED |
| Cephalanthus occidentalis |
BUTTONBUSH |
| Cerastium nutans |
NODDING MOUSE-EAR CHICKWEED |
| Cerastium vulgatum |
COMMON MOUSE-EAR CHICKWEED |
| Ceratophyllum demersum |
COONTAIL |
| Cercis canadensis |
EASTERN REDBUD |
| Chaenorrhinum minus |
DWARF SNAPDRAGON |
| Chaerophyllum procumbens |
WILD CHERVIL |
| Chamaesyce geyeri |
SPURGE |
| Chamaesyce maculata |
NODDING SPURGE |
| Chamaesyce supina |
MILK SPURGE |
| Chenopodium album |
LAMB'S QUARTERS |
| Chenopodium ambrosioides |
AMERICAN WORMSEED |
| Chenopodium desiccatum leptophylloides |
NARROW-LEAVED GOOSEFOOT |
| Chenopodium gigantospermum |
MAPLE-LEAVED GOOSEFOOT |
| Chenopodium standleyanum |
GOOSEFOOT |
| Chenopodium urbicum |
CITY GOOSEFOOT |
| Cichorium intybus |
BLUE SAILORS |
| Cicuta maculata |
WATER HEMLOCK |
| Cinna arundinacea |
STOUTWOOD REED |
| Cirsium arvense |
CANADA THISTLE |
| Cirsium discolor |
FIELD THISTLE |
| Cirsium pumilum |
HILL'S THISTLE |
| Cirsium vulgare |
BULL THISTLE |
| Claytonia virginica |
SPRING BEAUTY |
| Clematis pitcheri |
LEATHER FLOWER |
| Clematis virginiana |
VIRGIN'S BOWER |
| Comandra umbellata |
BASTARD TOAD-FLAX |
| Commelina communis |
COMMON DAY FLOWER |
| Commelina erecta |
DAY FLOWER |
| Conium maculatum |
POISON HEMLOCK |
| Consolida ambigua |
ROCKET LARKSPUR |
| Convolvulus arvensis |
FIELD BINDWEED |
| Conyza canadensis |
HORSEWEED |
| Conyza ramosissima |
DWARF FLEABANE |
| Coreopsis lanceolata |
LANCE COREOPSIS |
| Coreopsis palmata |
PRAIRIE COREOPSIS |
| Coreopsis tripteris |
TALL COREOPSIS |
| Cornus drummondii |
ROUGH-LEAVED DOGWOOD |
| Cornus florida |
FLOWERING DOGWOOD |
| Corydalis campestris |
PLAINS CORYDALIS |
| Corydalis flavula |
PALE CORYDALIS |
| Corydalis micrantha |
SLENDER CORYDALIS |
| Corylus americana |
AMERICAN FILBERT |
| Crataegus crus-galli |
COCK-SPUR THORN |
| Crataegus mollis |
RED HAW |
| Crotalaria sagittalis |
RATTLEBOX |
| Croton capitatus |
CAPITATE CROTON |
| Croton glandulosus septentrionalis |
SAND CROTON |
| Croton monanthogynus |
CROTON |
| Cryptotaenia canadensis |
HONEWORT |
| Cucurbita foetidissima |
MISSOURI GOURD |
| Cucurbita pepo ovifera |
PEAR GOURD |
| Cuphea viscosissima |
BLUE WAXWEED |
| Cuscuta glomerata |
DODDER |
| Cycloloma atriplicifolium |
TUMBLE RINGWING |
| Cynanchum laeve |
BLUE VINE |
| Cynanchum nigrum |
BLACK SWALLOW-WORT |
| Cynoglossum officinale |
COMMON HOUND'S TONGUE |
| Cyperus acuminatus |
TAPERLEAF FLAT SEDGE |
| Cyperus aristatus |
BEARDED FLAT SEDGE |
| Cyperus diandrus |
LOW FLAT SEDGE |
| Cyperus erythrorhizos |
RED-ROOTED SEDGE |
| Cyperus esculentus |
CHUFA |
| Cyperus filiculmis |
FERN FLATSEDGE |
| Cyperus filiculmis macilentus |
|
| Cyperus ovularis |
HEDGEHOG CLUB RUSH |
| Cyperus schweinitzii |
SCHWEINITZ FLATSEDGE |
| Cyperus strigosus |
STRAW COLORED FLATSEDGE |
| Cystopteris protrusa |
FRAGILE FERN |
| Dactylis glomerata |
ORCHARD GRASS |
| Dalea candida |
WHITE PRAIRIE CLOVER |
| Dalea purpurea |
PURPLE PRAIRIE CLOVER |
| Dasistoma macrophylla |
MULLEIN FOXGLOVE |
| Daucus carota |
QUEEN-ANNE'S-LACE |
| Delphinium tricorne |
DWARF LARKSPUR |
| Dentaria laciniata |
PEPPER-ROOT |
| Descurainia pinnata brachycarpa |
TANSY MUSTARD |
| Desmanthus illinoensis |
ILLINOIS BUNDLEFLOWER |
| Desmodium canadense |
SHOWY TICK TREFOIL |
| Desmodium canescens |
HOARY TICK TREFOIL |
| Desmodium ciliare |
HAIRY TICK TREFOIL |
| Desmodium cuspidatum |
TICK TREFOIL |
| Desmodium glutinosum |
BEGGAR'S LICE |
| Desmodium illinoense |
ILLINOIS TICK TREFOIL |
| Desmodium laevigatum |
GLAUCOUS TICK TREFOIL |
| Desmodium sessilifolium |
SESSILE-LEAVED TICKTREFOIL |
| Dianthus armeria |
DEPTFORD PINK |
| Dicentra cucullaria |
DUTCHMAN'S-BREECHES |
| Dichanthelium acuminatum fasciculatum |
PANIC GRASS |
| Dichanthelium clandestinum |
BROAD-LEAVED PANIC GRASS |
| Dichanthelium oligosanthes |
|
| Dichanthelium oligosanthes scribnerianum |
SCRIBNER'S PANIC GRASS |
| Digitaria filiformis |
FINGER GRASS |
| Digitaria sanguinalis |
HAIRY CRAB GRASS |
| Diodia teres |
POORJOE |
| Dioscorea villosa |
WILD YAM |
| Diospyros virginiana |
PERSIMMON |
| Dipsacus laciniatus |
CUT-LEAVED TEASEL |
| Dodecatheon meadia |
SHOOTING STAR |
| Draba reptans |
WHITLOW GRASS |
| Dryopteris carthusiana |
SPINULOSE WOODFERN |
| Dryopteris marginalis |
LEATHER FERN |
| Dyssodia papposa |
FETID MARIGOLD |
| Echinacea pallida |
PALE PURPLE CONEFLOWER |
| Echinacea purpurea |
BROAD-LEAVED PURPLE CONEFLOWER |
| Echinochloa muricata |
BARNYARD GRASS |
| Echinochloa muricata wiegandii |
BARNYARD GRASS |
| Echinochloa walteri |
SALT-MARSH COCKSPUR GRASS |
| Echinocystis lobata |
WILD BALSAM-APPLE |
| Echinodorus berteroi lanceolatus |
BURHEAD |
| Echinodorus cordifolius |
CREEPING BURHEAD |
| Eclipta prostrata |
YERBA DE TAJO |
| Elaeagnus angustifolia |
RUSSIAN OLIVE |
| Eleocharis erythropoda |
|
| Eleocharis obtusa |
|
| Eleocharis obtusa detonsa |
SPIKE RUSH |
| Eleocharis wolfii |
WOLF'S SPIKESEDGE |
| Eleusine indica |
GOOSE GRASS |
| Ellisia nyctelea |
AUNT LUCY |
| Elymus canadensis |
CANADA WILD RYE |
| Elymus hystrix |
BOTTLEBRUSH GRASS |
| Elymus villosus |
HAIRY WILD RYE |
| Elymus virginicus |
LYME GRASS |
| Epilobium coloratum |
CINNAMON WILLOW HERB |
| Equisetum X ferrissii |
INTERMEDIATE SCOURING RUSH |
| Equisetum arvense |
COMMON HORSETAIL |
| Equisetum hyemale affine |
SCOURING RUSH |
| Equisetum laevigatum |
SMOOTH SCOURING RUSH |
| Eragrostis capillaris |
LACE GRASS |
| Eragrostis cilianensis |
STINK GRASS |
| Eragrostis curvula |
WEEPING LOVE GRASS |
| Eragrostis frankii |
SANDBAR LOVE GRASS |
| Eragrostis hypnoides |
CREEPING LOVE GRASS |
| Eragrostis minor |
LOVE GRASS |
| Eragrostis pectinacea |
CAROLINA LOVE GRASS |
| Eragrostis spectabilis |
PURPLE LOVE GRASS |
| Eragrostis trichodes |
ICE CREAM GRASS |
| Erechtites hieracifolia |
FIRE WEED |
| Erigeron annuus |
ANNUAL FLEABANE |
| Erigeron philadelphicus |
MARSH FLEABANE |
| Erigeron pulchellus |
ROBIN'S PLANTAIN |
| Erigeron strigosus |
DAISY FLEABANE |
| Erucastrum gallicum |
DOG MUSTARD |
| Erysimum capitatum |
WESTERN WALLFLOWER |
| Erysimum repandum |
TREACLE MUSTARD |
| Erythronium albidum |
WHITE ADDER'S TONGUE |
| Euonymus atropurpureus |
BURNING BUSH |
| Eupatorium altissimum |
TALL BONESET |
| Eupatorium perfoliatum |
COMMON BONESET |
| Eupatorium purpureum |
GREEN-STEMMED JOE-PYE WEED |
| Eupatorium serotinum |
LATE BONESET |
| Euphorbia corollata |
FLOWERING SPURGE |
| Euphorbia cyparissias |
CYPRESS SPURGE |
| Euphorbia marginata |
SNOW-ON-THE-MOUNTAIN |
| Euthamia graminifolia |
GRASSLEAF GOLDENROD |
| Festuca duriuscula |
SHEEP FESCUE |
| Festuca obtusa |
NODDING FESCUE |
| Festuca paradoxa |
FESCUE |
| Festuca pratensis |
ENGLISH BLUEGRASS |
| Festuca rubra |
RED FESCUE |
| Fimbristylis autumnalis |
AUTUMN SEDGE |
| Forestiera acuminata |
SWAMP PRIVET |
| Fragaria virginiana |
WILD STRAWBERRY |
| Frasera caroliniensis |
AMERICAN COLUMBO |
| Fraxinus americana |
WHITE ASH |
| Fraxinus pennsylvanica |
GREEN ASH |
| Fraxinus quadrangulata |
BLUE ASH |
| Froelichia floridana campestris |
COTTONWEED |
| Froelichia gracilis |
COTTONWEED |
| Gaillardia pulchella |
FIREWHEELS |
| Galearis spectabilis |
SHOWY ORCHIS |
| Galinsoga quadriradiata |
PERUVIAN DAISY |
| Galium aparine |
ANNUAL BEDSTRAW |
| Galium circaezans |
WILD LICORICE |
| Galium concinnum |
SHINING BEDSTRAW |
| Galium obtusum |
WILD MADDER |
| Galium pilosum |
HAIRY BEDSTRAW |
| Galium triflorum |
SWEET-SCENTED BEDSTRAW |
| Gaura biennis |
BUTTERFLY-WEED |
| Gaura parviflora |
SMALL-FLOWERED GAURA |
| Gentiana alba |
PALE GENTIAN |
| Geranium carolinianum |
WILD CRANESBILL |
| Geranium maculatum |
WILD GERANIUM |
| Geranium sanguineum |
BLOOD-RED CRANESBILL |
| Geum canadense |
WHITE AVENS |
| Glandularia canadensis |
ROSE VERBENA |
| Glechoma hederacea micrantha |
GROUND IVY |
| Gleditsia triacanthos |
HONEY LOCUST |
| Glyceria striata |
FOWL MANNA GRASS |
| Gnaphalium obtusifolium |
CATFOOT |
| Gratiola neglecta |
CLAMMY HEDGE HYSSOP |
| Gratiola virginiana |
ROUND-FRUITED HEDGE HYSSOP |
| Hackelia virginiana |
STICKSEED |
| Hedeoma hispida |
ROUGH PENNYROYAL |
| Hedeoma pulegioides |
AMERICAN PENNYROYAL |
| Helenium amarum |
ROCK BITTERWEED |
| Helenium autumnale |
AUTUMN SNEEZEWEED |
| Helianthemum bicknellii |
FROSTWEED |
| Helianthus annuus |
COMMON SUNFLOWER |
| Helianthus decapetalus |
PALE SUNFLOWER |
| Helianthus divaricatus |
DIVERGENT SUNFLOWER |
| Helianthus grosseserratus |
SAWTOOTH SUNFLOWER |
| Helianthus hirsutus |
BRISTLY SUNFLOWER |
| Helianthus mollis |
ASHY SUNFLOWER |
| Helianthus occidentalis |
WESTERN SUNFLOWER |
| Helianthus petiolaris |
KANSAS SUNFLOWER |
| Helianthus rigidus |
PRAIRIE SUNFLOWER |
| Helianthus strumosus |
PALE-LEAVED SUNFLOWER |
| Helianthus tuberosus subcanescens |
JERUSALEM ARTICHOKE |
| Heliopsis helianthoides |
FALSE SUNFLOWER |
| Hemerocallis fulva |
DAY LILY |
| Hesperis matronalis |
DAME'S ROCKET |
| Heterotheca camporum |
GOLDEN ASTER |
| Heuchera americana hirsuticaulis |
TALL ALUMROOT |
| Heuchera richardsonii grayana |
PRAIRIE ALUMROOT |
| Hibiscus laevis |
HALBERD-LEAVED ROSE MALLOW |
| Hibiscus trionum |
FLOWER-OF-AN-HOUR |
| Hieracium longipilum |
HAIRY HAWKWEED |
| Hieracium scabrum |
HAIRY HAWKWEED |
| Hordeum jubatum |
FOX-TAIL BARLEY |
| Hordeum pusillum |
LITTLE BARLEY |
| Humulus japonicus |
JAPANESE HOPS |
| Humulus lupulus |
COMMON HOPS |
| Hydrangea arborescens |
WILD HYDRANGEA |
| Hydrastis canadensis |
GOLDEN SEAL |
| Hydrophyllum appendiculatum |
GREAT WATERLEAF |
| Hydrophyllum virginianum |
VIRGINIA WATERLEAF |
| Hypericum drummondii |
NITS-AND-LICE |
| Hypericum mutilum |
DWARF ST. JOHNS-WORT |
| Hypericum perforatum |
COMMON ST. JOHNS-WORT |
| Hypericum punctatum |
SPOTTED ST. JOHNS-WORT |
| Hypericum sphaerocarpum |
ROUND-FRUITED ST. JOHNS-WORT |
| Hypericum sphaerocarpum turgidum |
ROUND-FRUITED ST. JOHNS-WORT |
| Hypoxis hirsuta |
COMMON GOLDSTARGRASS |
| Ilex decidua |
SWAMP HOLLY |
| Impatiens capensis |
JEWELWEED |
| Impatiens pallida |
PALE TOUCH-ME-NOT |
| Ipomoea hederacea |
IVY-LEAVED MORNING GLORY |
| Ipomoea lacunosa |
SMALL WHITE MORNING-GLORY |
| Ipomoea pandurata |
WILD SWEET POTATO VINE |
| Iris brevicaulis |
BLUE WATER IRIS |
| Isopyrum biternatum |
FALSE RUE ANEMONE |
| Iva annua |
MARSH ELDER |
| Juglans cinerea |
BUTTERNUT |
| Juglans nigra |
BLACK WALNUT |
| Juncus biflorus |
TWO-FLOWERED RUSH |
| Juncus dudleyi |
DUDLEY RUSH |
| Juncus interior |
INLAND RUSH |
| Juncus marginatus |
GRASS-LEAVED RUSH |
| Juncus tenuis |
PATH RUSH |
| Juncus torreyi |
TORREY RUSH |
| Juniperus virginiana |
EASTERN RED CEDAR |
| Kickxia elatine |
CANKER-ROOT |
| Kochia scoparia |
BELVEDERE SUMMER CYPRESS |
| Koeleria macrantha |
CRESTED HAIR GRASS |
| Krigia biflora |
FALSE DANDELOIN |
| Kummerowia stipulacea |
KOREAN CLOVER |
| Lactuca canadensis |
CANADA LETTUCE |
| Lactuca floridana |
BLUE LETTUCE |
| Lactuca saligna |
WILLOW-LEAVED LETTUCE |
| Lactuca serriola |
COMPASS PLANT |
| Lamium purpureum |
PURPLE DEAD NETTLE |
| Laportea canadensis |
CANADA WOOD NETTLE |
| Lathyrus latifolius |
EVERLASTING PEA |
| Lechea villosa |
HAIRY PINWEED |
| Leersia lenticularis |
CATCHFLY GRASS |
| Leersia oryzoides |
RICE CUTGRASS |
| Leersia virginica |
WHITE GRASS |
| Lemna minor |
COMMON DUCKWEED |
| Lemna obscura |
DUCKWEEED |
| Leonurus cardiaca |
MOTHERWORT |
| Lepidium campestre |
FIELD CRESS |
| Lepidium densiflorum |
PEPPERGRASS |
| Lepidium virginicum |
COMMON PEPPERGRASS |
| Leptochloa fascicularis |
BEARDED SPRANGLE TOP |
| Leptoloma cognatum |
FALL WITCH GRASS |
| Lespedeza capitata |
BUSH CLOVER |
| Lespedeza cuneata |
CHINESE BUSH CLOVER |
| Lespedeza violacea |
VIOLET BUSH CLOVER |
| Lespedeza virginica |
SLENDER BUSH CLOVER |
| Leucanthemum vulgare |
COMMON TANSY |
| Leucospora multifida |
|
| Liatris aspera |
ROUGH BLAZING STAR |
| Liatris cylindracea |
CYLINDRICAL BLAZING STAR |
| Linaria vulgaris |
BUTTER-AND-EGGS |
| Lindernia dubia |
FALSE PIMPERNEL |
| Linum medium texanum |
SMALL YELLOW FLAX |
| Linum sulcatum |
GROOVED YELLOW FLAX |
| Liparis liliifolia |
LARGE TWAYBLADE |
| Lithospermum canescens |
HOARY PUCCOON |
| Lithospermum caroliniense |
HAIRY PUCCOON |
| Lithospermum incisum |
YELLOW PUCCOON |
| Lithospermum latifolium |
AMERICAN GROMWELL |
| Lobelia cardinalis |
CARDINAL-FLOWER |
| Lobelia inflata |
INDIAN TOBACCO |
| Lobelia siphilitica |
BLUE CARDINAL-FLOWER |
| Lobelia spicata |
SPIKED LOBELIA |
| Lobelia spicata leptostachys |
SPIKED LOBELIA |
| Lolium multiflorum |
ITALIAN RYE GRASS |
| Lonicera prolifera |
GRAPE HONEYSUCKLE |
| Ludwigia palustris americana |
MARSH PURSLANE |
| Ludwigia peploides glabrescens |
CREEPING PRIMROSE WILLOW |
| Ludwigia polycarpa |
FALSE LOOSESTRIFE |
| Lychnis alba |
EVENING CAMPION |
| Lycium barbarum |
COMMON MATRIMONY VINE |
| Lycopus americanus |
COMMON WATER HOREHOUND |
| Lycopus uniflorus |
NOTHERN BUGLE WEED |
| Lycopus virginicus |
BUGLE WEED |
| Lysimachia ciliata |
FRINGED LOOSESTRIFE |
| Lysimachia lanceolata |
LANCE-LEAVED LOOSESTRIFE |
| Lythrum alatum |
WINGED LOOSESTRIFE |
| Maclura pomifera |
HEDGE APPLE |
| Malus ioensis |
IOWA CRAB APPLE |
| Malva neglecta |
CHEESES |
| Marrubium vulgare |
COMMON HOREHOUND |
| Matricaria matricarioides |
PINEAPPLE WEED |
| Medicago lupulina |
BLACK MEDIC |
| Medicago sativa |
ALFALFA |
| Melanthium virginicum |
BUNCH FLOWER |
| Melilotus alba |
WHITE SWEET CLOVER |
| Melilotus officinalis |
YELLOW SWEET CLOVER |
| Menispermum canadense |
MOONSEED |
| Mentha X gentilis |
LITTLE-LEAVED MINT |
| Mentha arvensis villosa |
FIELD MINT |
| Mimulus alatus |
WINGED MONKEY FLOWER |
| Mimulus ringens |
MONKEY FLOWER |
| Mirabilis nyctaginea |
WILD FOUR-O'CLOCK |
| Mollugo verticillatus |
CARPETWEED |
| Monarda bradburiana |
MONARDA |
| Monarda fistulosa |
WILD BERGAMOT |
| Monarda punctata villicaulis |
HORSEMINT |
| Monotropa uniflora |
INDIAN PIPE |
| Morus alba |
WHITE MULBERRY |
| Morus rubra |
RED MULBERRY |
| Muhlenbergia asperifolia |
ALKALI MUHLY |
| Muhlenbergia frondosa |
COMMON SATIN GRASS |
| Muhlenbergia mexicana |
LEAFY SATIN GRASS |
| Muhlenbergia racemosa |
GREEN MUHLY |
| Myosotis verna |
SCORPION GRASS |
| Najas guadalupensis |
SOUTHERN NAIAD |
| Nelumbo lutea |
AMERICAN LOTUS |
| Nepeta cataria |
CATNIP |
| Nicandra physalodes |
APPLE-OF-PERU |
| Oenothera biennis |
EVENING PRIMROSE |
| Oenothera biennis canescens |
EVENING PRIMROSE |
| Oenothera laciniata |
RAGGED EVENING PRIMROSE |
| Oenothera rhombipetala |
SAND PRIMROSE |
| Oenothera speciosa |
SHOWY EVENING PRIMROSE |
| Onoclea sensibilis |
SENSITIVE FERN |
| Onosmodium hispidissimum |
MARBLESEED |
| Onosmodium molle occidentale |
MARBLESEED |
| Opuntia humifusa |
PRICKLY-PEAR |
| Ornithogalum umbellatum |
COMMON STAR-OF-BETHLEHEM |
| Orobanche uniflora |
CANCER-ROOT |
| Osmorhiza claytonii |
SWEET CICELY |
| Osmorhiza longistylis |
ANISE-ROOT |
| Ostrya virginiana |
HOP HORNBEAM |
| Oxalis dillenii |
YELLOW WOOD SORREL |
| Oxalis stricta |
YELLOW WOOD SORREL |
| Oxalis violacea |
PURPLE OXALIS |
| Panax quinquefolius |
GINSENG |
| Panicum capillare |
WITCH GRASS |
| Panicum dichotomiflorum |
FALL PANICUM |
| Panicum rigidulum |
MUNRO GRASS |
| Panicum virgatum |
PRAIRIE SWITCHGRASS |
| Papaver rhoeas |
CORN POPPY |
| Parietaria pensylvanica |
PENNSYLVANIA PELLITORY |
| Paronychia fastigiata |
FORKED CHICKWEED |
| Parthenocissus quinquefolia |
VIRGINIA CREEPER |
| Paspalum ciliatifolium |
BEADGRASS |
| Paspalum laeve |
SMOOTH LENS GRASS |
| Pastinaca sativa |
PARSNIP |
| Pedicularis canadensis |
LOUSEWORT |
| Penstemon calycosus |
SMOOTH BEARD-TONGUE |
| Penstemon digitalis |
FOXGLOVE BEARD-TONGUE |
| Penstemon pallidus |
PALE BEARD-TONGUE |
| Penthorum sedoides |
DITCH STONECROP |
| Perideridia americana |
|
| Perilla frutescens |
BEEFSTEAK PLANT |
| Petunia violacea |
VIOLET PETUNIA |
| Phalaris arundinacea |
REED CANARY GRASS |
| Phleum pratense |
TIMOTHY |
| Phlox bifida |
CLEFF PHLOX |
| Phlox divaricata laphamii |
BLUE PHLOX |
| Phlox paniculata |
GARDEN PHLOX |
| Phryma leptostachya |
LOPSEED |
| Phyla lanceolata |
FOG-FRUIT |
| Physalis heterophylla |
GROUND CHERRY |
| Physalis subglabrata |
SMOOTH GROUND CHERRY |
| Physalis virginiana |
GROUND CHERRY |
| Physostegia angustifolia |
NARROW-LEAVED FALSE DRAGONHEAD |
| Physostegia speciosa |
FALSE DRAGONHEAD |
| Physostegia virginiana |
FALSE DRAGONHEAD |
| Phytolacca americana |
POKEWEED |
| Pilea pumila |
CANADA CLEARWEED |
| Plantago aristata |
BRACTED PLANTAIN |
| Plantago lanceolata |
BUCKHORN |
| Plantago patagonica brevicarpa |
SALT AND PEPPER PLANT |
| Plantago rugelii |
RED-STALKED PLANTAIN |
| Plantago virginica |
DWARF PLANTAIN |
| Platanus occidentalis |
BUTTONWOOD |
| Poa annua |
ANNUAL BLUEGRASS |
| Poa compressa |
CANADIAN BLUEGRASS |
| Poa palustris |
FOWL BLUEGRASS |
| Poa pratensis |
KENTUCKY BLUEGRASS |
| Poa sylvestris |
WOODLAND BLUEGRASS |
| Podophyllum peltatum |
MAYAPPLE |
| Poinsettia dentata |
WILD POINSETTIA |
| Polanisia dodecandra |
CLAMMYWEED |
| Polanisia dodecandra trachysperma |
CLAMMYWEED |
| Polygala incarnata |
PINK MILKWORT |
| Polygala sanguinea |
FIELD MILKWORT |
| Polygala verticillata |
WHORLED MILKWORT |
| Polygonatum commutatum |
GREAT SOLOMON SEAL |
| Polygonum amphibium |
WATER SMARTWEED |
| Polygonum arenastrum |
KNOTWEED |
| Polygonum convolvulus |
BLACK BIRDWEED |
| Polygonum cristatum |
COPSE BINDWEED |
| Polygonum cuspidatum |
JAPANESE FLEECE FLOWER |
| Polygonum hydropiperoides |
MILD WATER PEPPER |
| Polygonum lapathifolium |
CURTTOP LADY'S THUMB |
| Polygonum pensylvanicum laevigatum |
PENNSYLVANIA SMARTWEED |
| Polygonum persicaria |
SPOTTED LADY'S THUMB |
| Polygonum punctatum |
DOTTED SMARTWEED |
| Polygonum ramosissimum |
BUSHY KNOTWEED |
| Polygonum scandens |
CLIMBING BUCKWHEAT |
| Polygonum tenue |
SLENDER KNOTWEED |
| Polygonum virginianum |
VIRGINIA KNOTWEED |
| Polystichum acrostichoides |
CHRISTMAS FERN |
| Populus alba |
WHITE POPLAR |
| Populus deltoides |
EASTERN COTTONWOOD |
| Portulaca oleracea |
PURSLANE |
| Potamogeton foliosus |
LEAFY PONDWEED |
| Potamogeton nodosus |
AMERICAN PONDWEED |
| Potamogeton pusillus |
BABY PONDWEED |
| Potentilla arguta |
PRAIRIE CINQUEFOIL |
| Potentilla norvegica |
ROUGH CINQUEFOIL |
| Potentilla recta |
SULFUR CINQUEFOIL |
| Potentilla simplex |
COMMON CINQUEFOIL |
| Prunella vulgaris elongata |
SELF-HEAL |
| Prunus americana lanata |
WILD PLUM |
| Prunus angustifolia |
CHICKASAW PLUM |
| Prunus hortulana |
WILD GOOSE PLUM |
| Prunus serotina |
WILD BLACK CHERRY |
| Psoralea onobrychis |
FRENCH GRASS |
| Psoralea tenuiflora |
SCURF-PEA |
| Ptelea trifoliata |
WAFER ASH |
| Pteridium aquilinum latiusculum |
BRACKEN FERN |
| Pycnanthemum pilosum |
HAIRY MOUNTAIN MINT |
| Pycnanthemum tenuifolium |
SLENDER MOUNTAIN MINT |
| Pycnanthemum virginianum |
COMMON MOUNTAIN MINT |
| Pyrrhopappus carolinianus |
FALSE DANDELION |
| Quercus alba |
WHITE OAK |
| Quercus imbricaria |
JACK OAK |
| Quercus macrocarpa |
BURR OAK |
| Quercus marilandica |
BLACKJACK OAK |
| Quercus palustris |
PIN OAK |
| Quercus prinoides acuminata |
CHINKAPIN OAK |
| Quercus rubra |
NORTHERN RED OAK |
| Quercus stellata |
POST OAK |
| Quercus velutina |
BLACK OAK |
| Ranunculus abortivus |
LITTLE-LEAF BUTTERCUP |
| Ranunculus abortivus acrolasius |
SMALL-FLOWERED CROWFOOT |
| Ranunculus hispidus |
BRISTLY BUTTERCUP |
| Ranunculus micranthus |
SMALL-FLOWED CROWFOOT |
| Ranunculus recurvatus |
HOOKED BUTTERCUP |
| Ranunculus septentrionalis |
SWAMP BUTTERCUP |
| Raphanus sativus |
RADISH |
| Ratibida pinnata |
DROOPING CONEFLOWER |
| Rhamnus lanceolata |
LANCE-LEAVED BUCKTHORN |
| Rhus aromatica |
AROMATIC SUMAC |
| Rhus glabra |
SMOOTH SUMAC |
| Ribes cynosbati |
DOGBERRY |
| Ribes missouriense |
MISSOURI GOOSEBERRY |
| Robinia pseudoacacia |
BLACK LOCUST |
| Rorippa islandica fernaldiana |
MARSH YELLOW CRESS |
| Rorippa sessiliflora |
SESSILE-FLOWERED CRESS |
| Rosa carolina |
PASTURE ROSE |
| Rosa eglanteria |
SWEET-BRIER |
| Rosa setigera |
ILLINOIS ROSE |
| Rubus allegheniensis |
COMMON BLACKBERRY |
| Rubus argutus |
HIGHBUSH BLACKBERRY |
| Rubus flagellaris |
DEWBERRY |
| Rubus frondosus |
BLACKBERRY |
| Rubus occidentalis |
BLACK RASPBERRY |
| Rubus pensylvanicus |
BLACKBERRY |
| Rubus phoenicolasius |
WINEBERRY |
| Rudbeckia hirta |
BLACK-EYED SUSAN |
| Rudbeckia laciniata |
CUTLEAF CONEFLOWER |
| Rudbeckia subtomentosa |
FRAGRANT CONEFLOWER |
| Rudbeckia triloba |
BROWN-EYED SUSAN |
| Ruellia humilis |
HAIRY RUELLIA |
| Ruellia strepens |
SMOOTH RUELLIA |
| Rumex acetosella |
COMMON SORREL |
| Rumex altissimus |
PALE DOCK |
| Rumex crispus |
CURLY DOCK |
| Rumex orbiculatus |
GREAT WATER DOCK |
| Rumex verticillatus |
SWAMP DOCK |
| Sabatia angularis |
MARSH PINK |
| Sagittaria brevirostra |
ARROWLEAF |
| Sagittaria calycina |
ARROWLEAF |
| Sagittaria latifolia |
ARROWHEAD |
| Salix alba |
WHITE WILLOW |
| Salix caroliniana |
CAROLINA WILLOW |
| Salix exigua |
SANDBAR WILLOW |
| Salix humilis |
PRAIRIE WILLOW |
| Salix nigra |
BLACK WILLOW |
| Salvia azurea grandiflora |
BLUE SAGE |
| Salvia reflexa |
ROCKY MOUNTAIN SAGE |
| Sambucus canadensis |
COMMON ELDER |
| Sanguinaria canadensis |
BLOODROOT |
| Sanicula canadensis |
CANADIAN BLACK SNAKEROOT |
| Sanicula gregaria |
COMMON SNAKEROOT |
| Saponaria officinalis |
BOUNCING BET |
| Sassafras albidum |
RED SASSAFRAS |
| Saururus cernuus |
LIZARD'S TAIL |
| Schizachyrium scoparium |
LITTLE BLUESTEM |
| Schrankia uncinata |
CAT-CLAW |
| Scirpus americanus |
AMERICAN BULRUSH |
| Scirpus atrovirens |
DARK GREEN RUSH |
| Scirpus cyperinus |
WOOL GRASS |
| Scirpus fluviatilis |
RIVER BULRUSH |
| Scirpus micranthus |
|
| Scirpus pendulus |
RED BULRUSH |
| Scirpus tabernaemontanii |
GREAT BULRUSH |
| Scrophularia lanceolata |
EARLY FIGWORT |
| Scrophularia marilandica |
LATE FIGWORT |
| Scutellaria australis |
SMALL SKULLCAP |
| Scutellaria lateriflora |
MAD-DOG SKULLCAP |
| Secale cereale |
RYE |
| Senecio plattensis |
PRAIRIE GROUNDSEL |
| Setaria faberi |
GIANT FOXTAIL |
| Setaria geniculata |
PERENNIAL FOXTAIL |
| Setaria glauca |
PIGEON GRASS |
| Setaria italica |
FOXTAIL MILLET |
| Setaria verticillata |
BRISTLY FOXTAIL |
| Setaria viridis |
COMMON FOXTAIL |
| Sida spinosa |
PRICKLY SIDA |
| Silene antirrhina |
SLEEPY CATCHFLY |
| Silphium integrifolium |
WHOLELEAF ROSINWEED |
| Silphium laciniatum |
COMPASS-PLANT |
| Silphium perfoliatum |
CUP PLANT |
| Silphium terebinthinaceum |
DOCK ROSIN-WEED |
| Sisymbrium altissimum |
TUMBLE MUSTARD |
| Sisymbrium officinale |
HEDGE MUSTARD |
| Sisyrinchium albidum |
BLUE-EYED GRASS |
| Sisyrinchium angustifolium |
COMMON BLUE-EYED GRASS |
| Sisyrinchium campestre |
PRAIRIE BLUE-EYED GRASS |
| Sium suave |
WATER PARSNIP |
| Smilacina racemosa |
FALSE SOLOMON SEAL |
| Smilax ecirrata |
UPRIGHT CARRION FLOWER |
| Smilax hispida |
BRISTLY GREENBRIER |
| Solanum carolinense |
HORSE-NETTLE |
| Solanum cornutum |
BUFFALO-BUR |
| Solanum ptycanthum |
BLACK NIGHTSHADE |
| Solidago canadensis |
CANADA GOLDENROD |
| Solidago flexicaulis |
BROADLEAF GOLDENROD |
| Solidago gigantea |
LATE GOLDENROD |
| Solidago juncea |
EARLY GOLDENROD |
| Solidago missouriensis |
MISSOURI GOLDENROD |
| Solidago nemoralis |
DYERSWEED GOLDENROD |
| Solidago radula |
ROUGH GOLDENROD |
| Solidago rigida |
RIGID GOLDENROD |
| Solidago speciosa |
SHOWY GOLDENROD |
| Solidago ulmifolia |
ELM-LEAVED GOLDENROD |
| Sonchus asper |
PRICKLY SOWTHISTLE |
| Sonchus oleraceus |
COMMON SOWTHISTLE |
| Sorghastrum nutans |
INDIAN GRASS |
| Sorghum halepense |
EGYPTIAN MILLET |
| Spartina pectinata |
FRESHWATER CORD GRASS |
| Spermacoce glabra |
SMOOTH BUTTONWEED |
| Sphenopholis obtusata |
PRAIRIE WEDGE GRASS |
| Sphenopholis obtusata major |
WEDGE GRASS |
| Spiranthes cernua |
NODDING LADIES-TRESSES |
| Spiranthes magnicamporum |
DUNE LADIES' TRESSES |
| Spirodela polyrhiza |
BIG DUCKWEED |
| Sporobolus asper |
DROP SEED |
| Sporobolus clandestinus |
DROPSEED |
| Sporobolus cryptandrus |
SAND DROPSEED |
| Sporobolus heterolepis |
NORTHERN DROP SEED |
| Sporobolus neglectus |
PUFFSHEATH DROPSEED |
| Sporobolus vaginiflorus |
NORTHERN RUSH GRASS |
| Stachys aspera |
HYSSOP HEDGE NETTLE |
| Stachys palustris homotricha |
WOUNDWORT |
| Stachys tenuifolia |
SLENDERLEAF BETONY |
| Staphylea trifolia |
BLADDERNUT |
| Stellaria media |
COMMON CHICKWEED |
| Stipa spartea |
NEEDLE GRASS |
| Strophostyles helvola |
WILD BEAN |
| Strophostyles leiosperma |
WILD BEAN |
| Symphoricarpos orbiculatus |
BUCKBRUSH |
| Taenidia integerrima |
YELLOW PIMPERNEL |
| Taraxacum laevigatum |
RED-SEEDED DANDELION |
| Taraxacum officinale |
COMMON DANDELION |
| Tephrosia virginiana |
GOAT'S RUE |
| Teucrium canadense virginicum |
AMERICAN GERMANDER |
| Thalictrum dasycarpum |
PURPLE MEADOW RUE |
| Thalictrum dioicum |
EARLY MEADOW RUE |
| Thalictrum revolutum |
WAXY MEADOW RUE |
| Thaspium trifoliatum |
MEADOW PARSNIP |
| Thlaspi arvense |
FIELD PENNY CRESS |
| Tilia americana |
AMERICAN LINDEN |
| Torilis japonica |
HEDGE PARSLEY |
| Toxicodendron radicans |
POISON IVY |
| Tradescantia bracteata |
PRAIRIE SPIDERWORT |
| Tradescantia ohiensis |
SPIDERWORT |
| Tradescantia subaspera |
SPIDERWORT |
| Tragopogon dubius |
GOAT'S BEARD |
| Tragopogon pratensis |
COMMON GOAT'S BEARD |
| Tribulus terrestris |
PUNCTURE-WEED |
| Tridens flavus |
FALSE RED TOP |
| Trifolium campestre |
LOW HOP CLOVER |
| Trifolium hybridum |
ALSIKE CLOVER |
| Trifolium pratense |
RED CLOVER |
| Trifolium repens |
WHITE CLOVER |
| Trillium recurvatum |
RED TRILLIUM |
| Triodanis perfoliata |
VENUS' LOOKING-GLASS |
| Triosteum perfoliatum |
LATE HORSE GENTIAN |
| Triplasis purpurea |
PURPLE SANDGRASS |
| Triticum aestivum |
BEARDED WHEAT |
| Triticum cylindricum |
JOINTED GOAT GRASS |
| Typha angustifolia |
NARROW-LEAVED CATTAIL |
| Typha latifolia |
CATTAIL |
| Ulmus americana |
AMERICAN ELM |
| Ulmus pumila |
SIBERIAN ELM |
| Ulmus rubra |
SLIPPERY ELM |
| Urtica dioica |
STINGING NETTLE |
| Uvularia grandiflora |
BIG MERRY BELLS |
| Verbascum blattaria |
MOTH MULLEIN |
| Verbascum thapsus |
WOOLLY MULLEIN |
| Verbena bracteata |
CREEEPING VERVAIN |
| Verbena hastata |
BLUE VERVAIN |
| Verbena simplex |
NARROW-LEAVED VERVAIN |
| Verbena stricta |
HOARY VERVAIN |
| Verbena urticifolia |
WHITE VERVIAN |
| Verbesina alternifolia |
WING STEM |
| Verbesina helianthoides |
YELLOW CROWNBEARD |
| Vernonia fasciculata |
COMMON IRONWEED |
| Vernonia missurica |
MISSOURI IRONWEED |
| Veronica arvensis |
CORN SPEEDWELL |
| Veronica peregrina |
PURSLANE SPEEDWELL |
| Veronica serpyllifolia |
THYME-LEAVED SPEEDWELL |
| Veronicastrum virginicum |
CULVER'S ROOT |
| Viburnum lentago |
NANNYBERRY |
| Viburnum prunifolium |
BLACK HAW |
| Vicia cracca |
BIRD VETCH |
| Vicia dasycarpa |
HAIRY-FRUITED VETCH |
| Vicia villosa |
WINTER VETCH |
| Viola pedatifida |
PRAIRIE VIOLET |
| Viola pubescens eriocarpa |
SMOOTH YELLOW VIOLET |
| Viola rafinesquii |
JOHNNY-JUMP-UP |
| Viola sagittata |
ARROW-LEAVED VIOLET |
| Viola sororia |
WOOLLY BLUE VIOLET |
| Viola triloba |
CLEFT VIOLET |
| Vitis aestivalis |
SUMMER GRAPE |
| Vitis riparia |
RIVERVBANK GRAPE |
| Vitis vulpina |
FROST GRAPE |
| Vulpia octoflora |
SIX-WEEKS FESCUE |
| Vulpia octoflora tenella |
SIX-WEEKS FESCUE |
| Wisteria frutescens |
WISTERIA |
| Wolffia columbiana |
COMMON WATERMEAL |
| Woodsia obtusa |
COMMON WOODSIA |
| Xanthium strumarium canadensis |
COCKLE BUR |
| Zannichellia palustris |
COMMON POOLMAT |
| Zanthoxylum americanum |
PRICKLY ASH |
| Zizia aurea |
GOLDEN ALEXANDERS |
| Zosterella dubia |
WATER STAR-GRASS |